AJUDA TIBIA FLASH

alguem sabe pq ta dando esse error ahi? no boton to play!?
 

Fatal error: Uncaught Error: Call to a member function fetch() on boolean in C:\xampp\htdocs\classes\website.php:249 Stack trace: #0 C:\xampp\htdocs\pages\play.php(11): Website::generateSessionKey() #1 C:\xampp\htdocs\system\load.page.php(7): include('C:\\xampp\\htdocs...') #2 C:\xampp\htdocs\index.php(39): include_once('C:\\xampp\\htdocs...') #3 {main} thrown in C:\xampp\htdocs\classes\website.php on line 249